im configuring a vpn tunnel between 2 sites over an adsl line. Could anyone tell me how this would change both site's internet access ability?
since the vpn uses the internet link to become a point-to-point link between the two sites, how will the users reach the internet? will this vpn tunnel stop internet access, or am i just over complicating things?
Just define the traffic you want to traverse the tunnel, all other traffic will go out to the internet. Let's say the network that needs to traverse the tunnel is 192.168.1.0 and the remote network being tunneled to is 192.168.2.0. Then the acl defining interesting traffic would simply be.
access-list crypto extended permit ip 192.168.1.0 255.255.255.0 192.168.2.0 255.255.255.0
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...